bump daml for rc-2

[johan-da]

@garyverhaegen-da When I try to update the hashes I see:

Using daml version 2.8.0-rc2.
error: unrecognised flag '--to-base64'
Try 'nix-hash --help' for more information.

nix-hash has not the '--to-base64' flag in my installation of nix.

[garyverhaegen-da]

@garyverhaegen-da When I try to update the hashes I see:

Using daml version 2.8.0-rc2.
error: unrecognised flag '--to-base64'
Try 'nix-hash --help' for more information.

nix-hash has not the '--to-base64' flag in my installation of nix.

Do you know which version you have? I'll try to find a workaround.

[garyverhaegen-da]

I've made it work without nix-hash.

[johan-da]

I've made it work without nix-hash.

Thnanks @garyverhaegen-da, I will update my nix after the release. I currently use version 2.13.3.